You are challenged to a lucky draw game. If you draw a face card (K, Q, J) from a standard deck of cards, you earn 10 points. If you draw any other card, you lose 2 points. What is the expected value that you can get if you draw another card?

Answers

Answer 1

Answer: To problem wants to compute the probability of the expected value that could be earn if you would draw again another card. So base on the fact that if draw a face card of K,Q,J from a standard deck correctly you will earn 10 point in just one draw, but loose 2 points if you another card, the probability that you would draw correct card in just one draw is 30.77%, so the possible value earn you have 2 points only

Answer 2

Answer:

A: 0.77

Step-by-step explanation:

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2(x + 5) = 1/2 (x - 4)

Answers

Answer: -8

Hope this helps :)

Please mark me as Brainliest

Solve mathematics question, please:) Unanswered re-asked question.

Answers

remember you can do anything to an equation as long as you do it to both sides

and when multiply by negative, flip sign

8+h>2+3h
minus h both sides
8+h-h>2+3h-h
8+0>2+2h
8>2+2h
minus 2 both sides
8-2>2-2+2h
6>0+2h
6>2h
divide by 2 both sides
6/2>2h/2
3>1h
3>h

first opotin

Answer:

h<3

Step-by-step explanation:

1. How can this model be used to determine 2.3−0.26 ?Enter your answers in the boxes (picture included)

The model shows a total of 2 wholes and 3 tenths. After regrouping 1 tenth into 10 hundredths, there are 2 wholes, ____ tenths, and ____ hundredths. After crossing out 2 tenths and 6 hundredths, there are 2 wholes, ____ tenths, and ___ hundredths remaining. Therefore, the difference of 2.3 and 0.26 is ____

2. Yasmine estimated the difference of 87.71 and 5.8 by rounding each number to the nearest whole.

What was Yasmine's estimate, and what is the actual difference of the numbers?

Enter your answers in the boxes.

Yasmine estimated the difference to be ___. The actual difference is __

.

.

Answers

Answer:

1. 2 wholes is (2) tenths and (10) hundredths

2 wholes is (0) tenths and (4) hundredths

difference of 2.3 and .26 is (2.04)

2. Yasmine estimated the difference to be (82). The actual difference is (81.91)

Step-by-step explanation:

Which of the following numbers has 4 significant figures? A. 3020.5 B. 0.003020 C. 3.2005 D. 0.0325

Answers

Answer:

Step-by-step explanation:

This is because the leading zero isn't counted, but the trailing zero after the decimal point is, making it four.

72. What is the prime factorization of 714?F. 2 • 357
G. 2 • 3 • 119
H. 2 • 7 • 51
J. 6 • 7 • 17
K. 2 • 3 • 7 • 17

Answers

Hello,
2*3*7*17=714
Answer K

A straight line has gradient m and passes through the points (0,-2). Find the two values for m for which the line is tangent to the curve y=x^2-2x 7. And for each value of m, find the coordinates of the points where the line touches the curve

Answers

Answer:

when m=2 or -2, the line is tangent to the curve at the points (2.7) and (0,7)

Step-by-step explanation:

Answer:

Hi,

Step-by-step explanation:

The curve is y=x^²-2x+7

The tangent has for equation: y=mx-2

Let's find the intersection of the tangent and the curve.

$mx-2=x^2-2x+7\n\nx^2+(-2-m)x+9=0\n\Delta=(-2-m)^2-4*9=m^2+4m-32\nThe\ point\ must\ be \ unique: \Delta=0\n\nm^2+4m-32=0\n\delta=4^2+4*32=144=12^2\n\nm=(-4-12)/(2) =-8\ or\ m=(-4+12)/(2) =4\n\nx^2+(-2-m)x+9=0\ and\ \Delta=0 = > x=(2+m)/(2) \n\nif\ m=-8\ then\ x=(2+(-8))/(2)=-3\ and\ y=mx-2=(-8)*(-3)-2=22\n\nif\ m=4\ then\ x=(2+4)/(2)=3\ and\ y=mx-2=4*3-2=10\n\n\nCoordinates\ of\ the\ points\ are (-3,22)\ and\ (3,10)\n$

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